Remark:1. If it’s without lead treatment & special requirement, after the 14th code is blank2. If it’s with lead treatment & without require special requirement, the 17th 18th 19th 20th code is blank3. If it’s without lead treatment, but, with special requirement, the 15th 16th code filled with 0.4. If it’s without lead treatment, but with special requirement, also exceed 4 kinds, keystone characteristicis 4code.5. If it’s with lead treatment, but with 1 special requirement, only remark 17 code, latter three code isblank.6. If it’s with led treatment, but with 1 special requirement, and it is different from former data, the 17th is0, the 18th code is characteristic